forked from k3s-io/kubernetes
-
Notifications
You must be signed in to change notification settings - Fork 0
/
generic.go
128 lines (108 loc) · 5.26 KB
/
generic.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
/*
Copyright 2018 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package options
import (
"fmt"
"strings"
apimachineryconfig "k8s.io/apimachinery/pkg/apis/config"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/sets"
apiserverconfig "k8s.io/apiserver/pkg/apis/config"
apiserverflag "k8s.io/apiserver/pkg/util/flag"
"k8s.io/kubernetes/pkg/client/leaderelectionconfig"
kubectrlmgrconfig "k8s.io/kubernetes/pkg/controller/apis/config"
)
// GenericControllerManagerConfigurationOptions holds the options which are generic.
type GenericControllerManagerConfigurationOptions struct {
Port int32
Address string
MinResyncPeriod metav1.Duration
ClientConnection apimachineryconfig.ClientConnectionConfiguration
ControllerStartInterval metav1.Duration
LeaderElection apiserverconfig.LeaderElectionConfiguration
Debugging *DebuggingOptions
Controllers []string
}
// NewGenericControllerManagerConfigurationOptions returns generic configuration default values for both
// the kube-controller-manager and the cloud-contoller-manager. Any common changes should
// be made here. Any individual changes should be made in that controller.
func NewGenericControllerManagerConfigurationOptions(cfg kubectrlmgrconfig.GenericControllerManagerConfiguration) *GenericControllerManagerConfigurationOptions {
o := &GenericControllerManagerConfigurationOptions{
Port: cfg.Port,
Address: cfg.Address,
MinResyncPeriod: cfg.MinResyncPeriod,
ClientConnection: cfg.ClientConnection,
ControllerStartInterval: cfg.ControllerStartInterval,
LeaderElection: cfg.LeaderElection,
Debugging: &DebuggingOptions{},
Controllers: cfg.Controllers,
}
return o
}
// AddFlags adds flags related to generic for controller manager to the specified FlagSet.
func (o *GenericControllerManagerConfigurationOptions) AddFlags(fss *apiserverflag.NamedFlagSets, allControllers, disabledByDefaultControllers []string) {
if o == nil {
return
}
o.Debugging.AddFlags(fss.FlagSet("debugging"))
genericfs := fss.FlagSet("generic")
genericfs.DurationVar(&o.MinResyncPeriod.Duration, "min-resync-period", o.MinResyncPeriod.Duration, "The resync period in reflectors will be random between MinResyncPeriod and 2*MinResyncPeriod.")
genericfs.StringVar(&o.ClientConnection.ContentType, "kube-api-content-type", o.ClientConnection.ContentType, "Content type of requests sent to apiserver.")
genericfs.Float32Var(&o.ClientConnection.QPS, "kube-api-qps", o.ClientConnection.QPS, "QPS to use while talking with kubernetes apiserver.")
genericfs.Int32Var(&o.ClientConnection.Burst, "kube-api-burst", o.ClientConnection.Burst, "Burst to use while talking with kubernetes apiserver.")
genericfs.DurationVar(&o.ControllerStartInterval.Duration, "controller-start-interval", o.ControllerStartInterval.Duration, "Interval between starting controller managers.")
// TODO: complete the work of the cloud-controller-manager (and possibly other consumers of this code) respecting the --controllers flag
genericfs.StringSliceVar(&o.Controllers, "controllers", o.Controllers, fmt.Sprintf(""+
"A list of controllers to enable. '*' enables all on-by-default controllers, 'foo' enables the controller "+
"named 'foo', '-foo' disables the controller named 'foo'.\nAll controllers: %s\nDisabled-by-default controllers: %s",
strings.Join(allControllers, ", "), strings.Join(disabledByDefaultControllers, ", ")))
leaderelectionconfig.BindFlags(&o.LeaderElection, genericfs)
}
// ApplyTo fills up generic config with options.
func (o *GenericControllerManagerConfigurationOptions) ApplyTo(cfg *kubectrlmgrconfig.GenericControllerManagerConfiguration) error {
if o == nil {
return nil
}
if err := o.Debugging.ApplyTo(&cfg.Debugging); err != nil {
return err
}
cfg.Port = o.Port
cfg.Address = o.Address
cfg.MinResyncPeriod = o.MinResyncPeriod
cfg.ClientConnection = o.ClientConnection
cfg.ControllerStartInterval = o.ControllerStartInterval
cfg.LeaderElection = o.LeaderElection
cfg.Controllers = o.Controllers
return nil
}
// Validate checks validation of GenericOptions.
func (o *GenericControllerManagerConfigurationOptions) Validate(allControllers []string, disabledByDefaultControllers []string) []error {
if o == nil {
return nil
}
errs := []error{}
errs = append(errs, o.Debugging.Validate()...)
allControllersSet := sets.NewString(allControllers...)
for _, controller := range o.Controllers {
if controller == "*" {
continue
}
if strings.HasPrefix(controller, "-") {
controller = controller[1:]
}
if !allControllersSet.Has(controller) {
errs = append(errs, fmt.Errorf("%q is not in the list of known controllers", controller))
}
}
return errs
}